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#include "transcode_data.h"
<%
map_normalize = {}
map_normalize["{00-ff}"] = :func_so
transcode_generate_node(ActionMap.parse(map_normalize), "universal_newline")
map_crlf = {}
map_crlf["{00-09,0b-ff}"] = :nomap
map_crlf["0a"] = "0d0a"
transcode_generate_node(ActionMap.parse(map_crlf), "crlf_newline")
map_cr = {}
map_cr["{00-09,0b-ff}"] = :nomap
map_cr["0a"] = "0d"
transcode_generate_node(ActionMap.parse(map_cr), "cr_newline")
%>
<%= transcode_generated_code %>
#define STATE (sp[0])
#define NORMAL 0
#define JUST_AFTER_CR 1
/* no way to access this information, yet. */
#define NEWLINES_MET (sp[1])
#define MET_LF 0x01
#define MET_CRLF 0x02
#define MET_CR 0x04
static int
universal_newline_init(void *statep)
{
unsigned char *sp = statep;
STATE = NORMAL;
NEWLINES_MET = 0;
return 0;
}
static ssize_t
fun_so_universal_newline(void *statep, const unsigned char *s, size_t l, unsigned char *o, size_t osize)
{
unsigned char *sp = statep;
int len;
if (s[0] == '\n') {
if (STATE == NORMAL) {
NEWLINES_MET |= MET_LF;
}
else { /* JUST_AFTER_CR */
NEWLINES_MET |= MET_CRLF;
}
o[0] = '\n';
len = 1;
STATE = NORMAL;
}
else {
len = 0;
if (STATE == JUST_AFTER_CR) {
o[0] = '\n';
len = 1;
NEWLINES_MET |= MET_CR;
}
if (s[0] == '\r') {
STATE = JUST_AFTER_CR;
}
else {
o[len++] = s[0];
STATE = NORMAL;
}
}
return len;
}
static ssize_t
universal_newline_finish(void *statep, unsigned char *o, size_t osize)
{
unsigned char *sp = statep;
int len = 0;
if (STATE == JUST_AFTER_CR) {
o[0] = '\n';
len = 1;
NEWLINES_MET |= MET_CR;
}
STATE = NORMAL;
return len;
}
static const rb_transcoder
rb_universal_newline = {
"", "universal_newline", universal_newline,
TRANSCODE_TABLE_INFO,
1, /* input_unit_length */
1, /* max_input */
2, /* max_output */
asciicompat_converter, /* asciicompat_type */
2, universal_newline_init, universal_newline_init, /* state_size, state_init, state_fini */
NULL, NULL, NULL, fun_so_universal_newline,
universal_newline_finish
};
static const rb_transcoder
rb_crlf_newline = {
"", "crlf_newline", crlf_newline,
TRANSCODE_TABLE_INFO,
1, /* input_unit_length */
1, /* max_input */
2, /* max_output */
asciicompat_converter, /* asciicompat_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, NULL
};
static const rb_transcoder
rb_cr_newline = {
"", "cr_newline", cr_newline,
TRANSCODE_TABLE_INFO,
1, /* input_unit_length */
1, /* max_input */
1, /* max_output */
asciicompat_converter, /* asciicompat_type */
0, NULL, NULL, /* state_size, state_init, state_fini */
NULL, NULL, NULL, NULL
};
void
Init_newline(void)
{
rb_register_transcoder(&rb_universal_newline);
rb_register_transcoder(&rb_crlf_newline);
rb_register_transcoder(&rb_cr_newline);
}
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